Browse Prior Art Database

Laser Beam Aligner

IP.com Disclosure Number: IPCOM000108413D
Original Publication Date: 1992-May-01
Included in the Prior Art Database: 2005-Mar-22
Document File: 1 page(s) / 40K

Publishing Venue

IBM

Related People

Haller, MM: AUTHOR [+3]

Abstract

Disclosed is a method for aligning and maintaining the exact alignment of a laser output beam (see the figure).

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 100% of the total text.

Laser Beam Aligner

      Disclosed is a method for aligning and maintaining the exact
alignment of a laser output beam (see the figure).

      Laser beam (1) from laser head (10) strikes first beam splitter
(2).  99.5% of laser beam (1) is reflected up as beam (9) and passes
through optics (not shown).  The remaining .5% of beam (1) i.e., beam
(3), impinges upon beam splitter (4) which splits beam (3), .50% of
beam (3) is reflected downwardly as to beam (5) to photodetector (6).

      Photodetector (6) detects the exact position of the laser beam
(5) to this point.  The other 50% of beam (3) passes through beam
splitter (4).  When beam (3) passes through beam splitter (4), beam
(3) becomes beam (7).  Beam (7) strikes photodetector (8).
Photodetector (8) will detect the exact position of beam (7).  A
signal from photodetectors (6) and (8) will be sent to two digital
displays (11).  Digital displays (11) will dis play the exact "X" and
"Y" coordinate position of the beam at points (6) and (8).  Laser
head (10) can now be adjusted until the original position of beam is
attained.  When beams (5) and (7), respectively, are in their exact
position, beam (9) will also be in its exact position.

      Disclosed anonymously.